[坎贝尔生物学 第991页] Campbell Biology 12th Edition
▼ Figure 42.23 A tracheal system. Image: A multi-part figure illustrating the insect tracheal system: a an overview of an insect's branched internal tubes trach
▼ Figure 42.23 A tracheal system. Image: A multi-part figure illustrating the insect tracheal system: a an overview of an insect's branched internal tubes trach